Who's the Mistress?

"At the class session joined by the school leaders and officials from the Department of Education, my lecture PPT was swapped for a sensational "Mistress's Charge Letter"."Charge one. Willingly being the other woman makes her an unsuitable role model for students.""Charge two. Attempting to secure a higher position through sex.""Charge three. Menacing the lawful wife with the absurd hope of advancing through pregnancy."Amidst the leaders and officials, my husband's illegitimate child accused me of disrupting her parents' marriage.In the name of "expelling the mistress to achieve justice", she coerced me, the true wife, into a humiliating bow to the mistress.I confronted my husband upon his arrival, "Care to explain? Why didn't I know that you had an illegitimate daughter?"He responded with a strike to the girl's face."Where are you from, you unruly child? You're so ill-mannered!""